摘要
在电动冲击夯优化设计问题的研究中,采用机械行业新兴的虚拟样机技术设计了新型电动冲击夯。利用Pro/e软件建立了一种新型冲击夯几何模型并进行了虚拟装配,采用专用接口模块Mechanism/Pro将模型导入动力学仿真软件Adams建立了虚拟样机模型,并进行验证,调整仿真时间仿真步数的比值s解决了刚体之间的接触穿越问题;通过修改样机模型中的参数进行系统仿真分析了曲柄半径r、弹簧刚度k、夯机上机体m和夯板m2的比值n、弹簧预压缩力p等关键参数对系统稳定性和有效性的影响,确定了上述参数的最优值范围,经过多变量参数优化,得出一组最优参数值:r=20mm,k=26150N/m,n=4.5,p=260N,运行表明改进的样机模型能够用于实体加工制造。
Use the new technology of machinery industry to design a new rammer. The Pro/E software was used to establish a new rammer geometric model and virtual assembly. A dedicated interface module Mechanism/Pro was used to introduce the model dynamics simulation software ADAMS model to establish a virtual prototype and verify it. The ratio s of simulation time and steps was adjusted to solve the contact through between rigid bodies. By modifying the parameters in the prototype model system and simulation, the influences of Crank radius r, spring stiffness k, top ramme body mass m and Rammer plate mass m2 ratio n, spring pre - compression force p and other key parameters on the stability and effectiveness of the system were were analysed. The optimal range of the parameter was determined,the muhivariate parameters were optimized to obtain a set of optimal parameter values ： r = 20mm, k = 26150N/m,n =4. 5 ,p = 260N.
出处
《计算机仿真》
CSCD
北大核心
2014年第6期414-418,共5页
Computer Simulation
关键词
虚拟样机
建模
仿真分析
Virtual prototyping
Modeling
Simulation analysis
